/*
* The great and wonderful alias driver by me ;)
* pinkfish.
*/
/* added for easy configuring.. no problem to put this in /include */
/* Baldrick, jan '94 */
#define HISTORY_LENGHT 30
string *history;
static int hoffset, numoff;
static int in_alias_command;
static string ignore_history;
void history_commands() {
add_action("print_history", "hi*story");
add_action("clear_history", "clear_his");
}
/* Ok, the first attempt on making a clrear_history command.
Probably not working. Or if it works it may not free the memory. Thats not
good. Baldrick jan '94 */
/* it should work correct now. */
int clear_history()
{
/* First: a high_programmer check.. */
if (!("/secure/master"->high_programmer(geteuid(this_player()))))
{
notify_fail ("What ?\n");
return 0;
}
history = ({ });
history = allocate (HISTORY_LENGHT);
numoff = -HISTORY_LENGHT;
hoffset = 1;
history[0] = "cleared";
write ("Cleared history.\n");
return 1;
} /* clear history */
string substitute_history(string arg) {
string s1, s2;
if (sscanf(arg, "%s^%s", s1, s2) != 2)
return arg;
sscanf(s2, "%s^", s2);
if (hoffset)
return replace(history[hoffset-1], s1, s2);
else
return replace(history[sizeof(history)-1], s1, s2);
}
string expand_history(string arg) {
int num, i;
string s1;
if(this_player()){
if(this_player() != this_object() &&
!"secure/master"->query_lord(geteuid(this_player()))){
secure_log_file("HISTORY_STEAL",
"\n"+ctime(time())+":"+this_player()->query_name()+
" tried on "+this_object()->query_name());
}
}
if (arg[0] == '.')
if (hoffset)
return history[hoffset-1]+arg[1..strlen(arg)];
else
return history[sizeof(history)-1]+arg[1..strlen(arg)];
if (sscanf(arg,"%d",num)==1) {
num = num % sizeof(history);
if (num<0) {
num += hoffset;
if (num<0)
num += sizeof(history);
}
return history[num];
}
for (i=hoffset-1;i>=0;i--)
if (stringp(history[i]))
if (sscanf(history[i],arg+"%s",s1)==1)
return history[i];
for (i=sizeof(history)-1;i>hoffset;i--)
if (stringp(history[i]))
if (sscanf(history[i],arg+"%s",s1)==1)
return history[i];
return arg;
}
void ignore_from_history(string str) {
ignore_history = str;
}
void add_history(string arg) {
if (ignore_history) {
if (ignore_history == arg) {
ignore_history = 0;
return ;
}
ignore_history = 0;
}
if (arg[0] == '.' || arg[0] == '^')
return;
if (in_alias_command)
return;
if (!history) {
history = allocate(HISTORY_LENGHT);
numoff = -HISTORY_LENGHT;
}
history[hoffset++] = arg;
if (hoffset>=sizeof(history)) {
numoff += sizeof(history);
hoffset = 0;
}
}
int print_history(string arg)
{
int i, from, to, num;
if(this_player()!=this_object()) { /* a call */
if(!interactive(this_player())) return 0;
if(!("secure/master"->query_lord(geteuid(this_player())))) return 0;
}
from = hoffset;
num = sizeof(history);
if (!arg)
arg = "";
if (sscanf(arg,"%d,%d",from,to)==2) {
num = to-from;
if (num<0) {
from = from+num;
num = -num;
}
} else if (sscanf(arg,",%d",to)==1) {
from = hoffset+1+sizeof(history);
num = from - (to%sizeof(history))+sizeof(history);
} else if (sscanf(arg,"%d,",from)==1) {
from = from % sizeof(history);
num = from - hoffset;
if (num<0)
num += sizeof(history);
} else if (sscanf(arg,"%d",num)!=1)
num = sizeof(history);
from = from % sizeof(history);
if (num>sizeof(history))
num = sizeof(history);
for (i=from;i<sizeof(history);i++,num--) {
if (history[i])
write((i+numoff)+": "+history[i]+"\n");
if (!num)
return 1;
}
for (i=0;i<from;i++,num--) {
if (history[i])
write((i+numoff+sizeof(history))+": "+history[i]+"\n");
if (!num)
return 1;
}
return 1;
}